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Queues and Reservations

Here are the queues available on Glenn. Please note that you will be routed to the appropriate queue based on your walltime and job size request.

Name

Nodes available

max walltime

max job size

notes

Serial

Available minus reservations

168 hours

1 node

Longserial

Available minus reservations

336 hours

1 node

Restricted access

Parallel

Available minus reservations

96 hours

256 nodes

Dedicated

Entire cluster

48 hours

436 nodes

Restricted access

"Available minus reservations" means all nodes in the cluster currently operational (this will fluctuate slightly), less the reservations listed below. To access one of the restricted queues, please contact OSC Help. Generally, access will only be granted to these queues if performance of the job cannot be improved, and job size cannot be reduced by splitting or checkpointing the job.

In addition, there are a few standing reservations.

Name

Times

Nodes Available

Max Walltime

Max job size

notes

Debug

8AM-6PM Weekdays

16

1 hour

16 nodes

For small interactive and test jobs.

GPU

ALL

32

336 hours

32 nodes

Small jobs not requiring GPUs from the serial and parallel queues will backfill on this reservation.

Occasionally, reservations will be created for specific projects that will not be reflected in these tables.